Industrial truck



llzoas March 8 927 E. H. REMDE INDUSTRIAL TRUCK Filed @2.19. 1924 3 `lsimens-sheen A TTOYRNE Y.

March .8; 1927. E. H. REMDE INDUSTRIAL. TRUCK Filed Aug. 19.` 1924 Sheets-*Sheet 2 IN VEN TOR.

A TTORNEY.

March 8, 1927.'

E. H. REMDE INDUSTRIAL.' TRUCK Filed Aug. 19. 1924 5 sheets-Sheets' BY n JINVENTOR. I

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' A TTORNE Y.

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Patented Mar. 8, 1927.

UNITED STATESA PATENT OFFICE.

EDXVARD 1-1. REMDE, 0F CLEvELAND, OHIO, ASSIGN-OR T0 THE BAKER-RAULANG COM- PANY, F CLEVELAND, OHIO, A CORPORATION OF OHIO.

INDUSTRIAL TRUCK.

Application led August 19, 1924. Serial 110.732,97).

This invention relates to an industrial truck capable of-lifting, piling', lowering, and trans-porting goods, crates and boxes-.

()ue object of the invention is to provide :i truck of this character of relatively simple and economical construction.

Another object ofthe invention is to construct a truck of this character that. is relatively light without sacrificing its durability and capacity.

Other objects of the invention will be ap parent to those skilled in'the art to which iiiv invention relates from the following Idescription taken in connection with the accompanying drawings.

Fig'. 1 is a side elevation, parts being broken away, of an industrial truckein` bodyiug niy invention.

Fig. 2 is a top plan View ot the truck, with parts broken away, t0 facilitate the illustration.

Fig. 3 is an end View of the truck lookini;- toward the left of Figs. 1 and Fig. 4 is a View similar to Fig. 3, but showing the elevating member in raised po- Sillon.

Fig. 5 is a fragmentary .sect-ion partly on the lline 5---5 and partly on the line .5a-5 of Figli.

Fig. is a sfide elevation lof the parts shown in Fig. 5.

`Figi'. 7 is a p lan View of` the guide frame,

but showii/igl two of the, sheaves in section. in the drawings, l indicates as an entiretv a fraaie. rlhe frame 1- comprises a relatively low section l*L and au elevated ser tion l. The low lsection 1 comprises a pair of spaced. channel bars 2, having inset portions-Q at or adjacent their outer ends to provide ample i'ooin for a pair of relatively ysmall supporting; or trailing wheels 3. thei frei- `eiids being' connected by a plate 4 which is secured hyf angles 4 to sach bar (see Fig'. 2'); The elevated section Alb preferably coinprises a pair of longitudinally extending channel bars 5sai'id a pair of U-shaped channel bars (i which-provide lateral extensions er sides to house or overlie the traction wheels A7. as shown in Fig'. and a suitable hase for a' suitable powerv plant or other source of power supply, for example, the 4latteries. l to supply current to' operate the truck. 1c indicates a casing.,y for the batterie-s` 1. The longitudinal bars 5., 5s at their inner ends, overlap the inner ends 0f the bars 2, Q. so that each bar 5 and the ail- ]acent bar 2 can be rigidly connected by a gusset 8. For this purpose. the bars 5 and 2 are disposed s'o that their outer faces are in the same vertical plane. The gnssets 8 extend upwardly above the bars 5 for a purpose to be later set forth. y

9 indicates the axle for the traction wheels, the housing thereof being provided with knuckles 9 to pivotally mount the wheels 7 thereon, whereby they inay hc steered. The

axle housing is provided with an extension 10 which foi-nis a cradle for a motor ll (preferably of the electric type), the shaft of which is connected with and drivesvthe live axles of the axle 9 in a Awell known inanncr. 12 indicates supporting means for the motor and axle permitting movement-thereof relati ve. to the frame 1 during operation of the truck, member 12a preferably mounted to rock on the gussets 8 and a thrust member 12b preferably mounted to rock on a shaft 12Q carried bythe bars 5. -i

13 indicates a pair of uprights, preferably formed of angle bars, being secured tio the outer faces of the bars 5 (seevFig. 2) and extending upwardly 'and downwardly relative thereto. The depending` portions of the uprights 13 support side plates 14, which in turn carry brackets 15. shaft supported at its opposite ends in knuckles or bosses providedk on the brackets 17 indicates a platformen which the operator stands while operatingf the truck platform 17 is pivoted The inner ed ge of the on the shaft 16 to swing upwardly (sce ldotted lines in Fig. 1) when not in use.- The 'upper portions of the uprig'hts 13 support a dash 18 on which is mounted an automatic switch mechanism lt). vand a bracket 20 for a controller handle The-- handle. 21 is connected by a link- 22 with an ai'in 23, which is connected to and rocks a shaft 24. operi ativelyconnected vt0 the drinn of a controller Q5. The controller 25 is mounted on the uprights 13. I

26 indicates as an entirety a nisin for the truck. l indicates a. brake wheel fixed to thel extended end ot' the propeller .shaft lill. JSiiidicates a pair of brakeshoes arranged to operative? l v engage the Wheel 2T, said shoes being consuch mea-ns inclu-ding a torque- 16 indicates a" A brake inc-chia? Of this mechanism,- 27

trolled by a cam connected to a lever, which in turn is connected to one arm of a bell crank 29. The bell crank 29 is pivotally mounted on a suitable stud-shaft carried by the housing for the axle 9 or driving connections between it and the motor 11. 30 indicates a link connected at one end to the other arm of the bell crank 29 and at its'opposite end to one arm of a second bell crank 31 pivotally mounted on the inner face of the adjacent plate 14. The other arm of the bell crank 31 is provided with two knuckles, one forming a pivot connection for one end o'f a rod 32 and the other forming a pivot connection for one end of a rod 33. The opposite end of the rod 32 is pivotally connected to the tail of a foot pedal 34 mounted to rock on the shaft 16, whereas the rod 33 extends upwardly and is connected at its upper end to the switch mechanism 19. ini icates a spring connected at one end to the frame 1, preferably to the adjacent bar 5. The other end of the spring 35 is connected to the link 30 vand o crates therethrough normall to apply the brake shoes 28 to the wheel 27 and to swingvthe pedal 34 to the position shown in Fig. 1. Accordingly, pressure on the pedal 34 will swing it downwardly and release the brake shoes 28, thus putting the spring 35l under tension; By means of the' rod 33 interconnecting the brake mechanism 26 and switch mechanism 19, the latter is rendered inoperative when the brake shoes 28 are in applied position.` As the switch mechanism a'nd its connection with the brake mechanism forms no pr't ot' the present invention, detail description and Vpreferably cut -1`, to permit the engagement of the bars with the upper surface ofthe axle 36, the latterv illustration thereof is not deemed necessary.

36 indicates an axle secured to theinset portions 2 of the bars 2, the latter being away, as shown at 2b in Fig.

being secured to the bars in any desired manner, for example, by angle plates 36". The opposite ends of the axle 36 are preferably provided with. suitable knuckles, each arranged between and aligned with a pair of knuckles 4provided lon the inner end of the spindle-for the adjacent wheel 3 and pivlotally connected to such knuckles to permit 'swinging movement of the wheel for steerin purposes. l

he steering connections may be arranged to steer all four wheels simultaneously, and

preferably comprise the following elements: 37 indicates a post or rod rotatively mounted in suitable bearings provided in one or more brackets mounted on one of the uprights 13. At its upper end the post 37 is provided with a handle 37 preferably pivoted at its inner end to the post 37. At its lower end, the

st 37 carries an arm 38 to which is pivotally connected a. rod 39. The rod l39 connects the arm 38 to a; lever 40 'fixed-to the spindle of the adjacent traction wheel 7.v4 41, 41, mdicates a pair of arms, each projecting from the spindle for one of the wheels 7 and indicates a separate arm extending from the i spindle forvone of the wheels 7 (preferably thatspindle to which the lever 40 is conf nected) and pivotally connected at its outer end to one end of a rod 44. The opposite' end of the rod 44 is pivotally connected vto one arm of a bell crank 45 mounted to rock, on an upstandin'g stud shaft 46 carried by a cross member 47. Theother arm of the bell crank 45 is connected by a link 48 to.4 an arm 49 fixed to the spindle for the adjacent wheel 3 and the arm 49 is connected by atie rod 50 with an arm 4,9a fixed to the spindle for the other wheel 3.

51 indicates a pair of uides extending vertically and preferably isposed intermediate the frame 1, and at the rear end -of the elevated frame section 1b. The guides 51 preferably comprise I-beams extending from the lower side of the bars 2 upwardly to the desired height. As shown in Figs. 1 and 5, the I-beams 51 are disposed relatively close together, this arrangement providing Jfor the mounting of the guide shoes or rollers 52 of the elevating member (indicated as an entirety at 53) \in the outer channels of the I- beams and the rigid connection of the latter with both the bars 2 and 5 through the gussets 8, preferably along or adjacent their outer edges by rivets or other means. '10 permit 'ofthis arrangement the-inwardly ex'- tending flanges of the I-.beams 51 are cut. away so that the inner sides of the I-beams may be secured in faceto-face relation with the outer sides of the channel bars 2, 5.

As shown in Fig. 1, the bars 2, 5, overlap eachother a considerable distance and the ssets have a widthequal to such overlap, so that a large area is provided for the securing means between each gusset and each due to loads on the elevating member 53 will l be transmittedto thegussets' 8 in ysubstantiaily an endwise direction. lAccordingly, such gusscts will withstand such stresses with minimum distortion.

Of the elevating member 53,'54 lindicates an angle bar bentinto substantially U-shape to form a provides depending sides 56 for the load carrying'section and a flange 56 to'support the plate 755, the latter being preferably riveted to the' horizontally extending load carryingr rsection 54a to supporta' plate 55. The bar 454 fio flange 56n near the opposite ends of the bar 54 iS cut away on a transverse line at or adjacent the inner edge of the plate so that the side port-ions 56 of the bar may project inwardly to provide arms 57 preferably reinforced by plates 57L which extend outwardly to a point below the flange 56, as shown in Fig. 6. 58 indicates apair of angle plates having their walls positioned against the inner edges of the flange 56 and inner faces of the plates 57a and projecting upwardly and connected together above the bar 54 by a Jplate 59. As shown in Fig. 5, the inner cutawa edges of the tlane'e 56 are in a trans"- verse plane outwardly ofthe I-bealn 51, so that the inturned walls of the bars 58 and connecting plate 59 donot engage with the I-beams as the elevating member 53 moves vertically. 66 indicates a pair of connecting plates each extending between the upper end of one angle bar 58 to the outer end of the adjacent arm 57 and rigidly connected at its opposite ends thereto, the lower end of thev plate being off-set, as shown at 60a (Fig. 5), so that it rnay be secured to the outer face 'of the arm 57. 61 indicates pairs of supports secured in any desired manner to the inner sides of the. angle bars 58 and supporting'y stud shafts 62 on which are loosely mounted the rollers 52. As will be understood from Figs.- 2, 5, and 6, the free ends of the shafts 62 are disposed at inclined angles corresi'ionding to the inclined inner or opposing faces of the. ianges of the I-beams 51, with which faces the rollers 52 engage, so that the latter may roll thereon without undue 4friction, the rollers on each bar 58 being aranged at different angles with respect to each other since the upper roller 52 engages the front flange and the lower roller 52 engages the rear flange.

63 indicates a pair of standards lixed or connected-at their lower ends to the upwardly extending ends of' the gussels 8 an'l support a power unit, indicated as an entirety at 64, operating through a pairl of flexible members, such as cables 65, 66, to

raise and lower the elevating member 58.

The power-.unit 64 con'iprises a casting forming a housingl 64 for a worin gear 67 and an extension 64" forming a cradle. 68 indicates an electric motor n'iount'ed in the'cradle 6.4" and supplied with current from the batleries 1 and operated through a suitable controller 69.w 'Tle controller 69 is mounted on a bracket -69a carried by the dash 18. The shaft of the motor 68 is connected lo a propeller shaft 7() to which is secured 'a worm 71 meshing with the worm gear 67. lhe propeller shaft 7() is mounted in bearings in the casing element 76 which forms partl of `the housing 64a.v 72 indicates a shal't keyed vto the gear 67 and driven thereby. The shaft 72 is mounted in suitable bearings provided within the housing Maand projects laterally through openings in the side walls thereof. 73, 74, indicate drums fixed to the extended ends of the shaft 72 and driven therebyto Wind the cables 65, 66, respectively, thereon and therefrom.

7.5, 76, and 77, 78, indicate pairs of sheaves, each pair being mounted at the upper cual ol one of the I-beanis and on the inner side thereof. 79, 80, indicate a pair of sheaves mounted on the inner face of the plate 5t). The sheaves 79, 80, are loosely' mounted on a shaft 81 mounted in an opening formed in a thickened portion of the. plate 59, the shaft 81 being preferably arranged at a 'point substantially midway between the guides 5`1. Each pair of sheaves -76, 77-78, is loosely mounted on a stud or shaft 82 supported in a base 88.1hc liange of which is rigidly secured-to the inner face of the adjacent I- beams 51 by rivets or other suitable means the sheaves being preferably held on the shaft by a washer 84 and a cotter pin 84, As shown particularly in Fig. 7, the shafts are inclined at angles to the guides so as to support the sheaves 75-76 and 77-78 in 'inclined planes, this arrangement providing a saving inthe over-all length ofthe frame 1 by permitting the guides 51 to be positioned relatively near thc drums and the operation 4of the cables 65, 667 without engaging the, motor. By arranging the guide rollers on, the outside of the guides 51.1 am enabled to position the sheaves 'f5-76, 77----78, on the inner sides thereof, and thereby materially reduce the. height of the truck and eliminate. unnecessarymechanism at the top of the. guides.

'lhe cables 65, 66` rceve about the sheaves :is follows: 'l`he cable 65 leads from the drum 7? upwardly around the shea've 75 and then downwardly around the sheave from the sheave 86. the cable 65 extends upwardly around the shea ve, 77 and then downwardly, its free. end being anchored to one end o'll an equalizing bar 85 ca rricd by a lake-up `mechanism indicated as an entirety at 86. The cable 66 leads from the drum 74 upwardly around the sheavo 78 and then downwardly around the sheave' 7 9; from the-sheave `79, the cable 66 extends upwardly around the sheave 76 and then downwardly. ils freey end being anchored tothe ,opposite end ot' the equalizing bar 85.

87 indicates a switch n'iechanism supported by an angle plate 87 on one of the guides 51. 'lhe mechanism coml'irises switches either of which is operated when the shaft 871" is rocked in one direction. The shaft 87 carries an arm 88 to which are pivotally conneclia'l the innereuds of the rods 89. one extending ulnvardly and guided .for endwise movement bv the walls of an opening formed in a bracket 9() and the other extending downwardly and guided at its lower end 'for endwise movement. by a bracket 91; the

' bracket 90 being carried by the rear liange of the collars 92, moves the rods whlch-gin turn will open one of the switches' ofthe switch mechanisms 87 and' thus break the circuit to the motor 68.

" 94 indicates al mechanism interposed between the take-up mechanism 86 and switch mechanism 87 and serving to operate the lat- -ter when the take-up mechanism operates.

The take-up mechanism 86 is for the purpose of taking 'up all slack in the cables 65, 66,

in the event the elevating member 53 becomes wedged or meets with any obstruction in its downward movement, this' mechanism and.

the switch operating mechanism associated with it being the invention of Amiel- G. Hutzley and forming the subject-matter of a separate application iled by him, The

take-up mechanism as shown. herein, com-- prises a relatively heavy member 86a slidably supported by and between a cross plate 86b and .a yoke 86 (see Fig. 5). the lower end of the member 86 having lateral extensions as shown in Figs. 3 and 4, which engage the lower edge of the yoke 86c and limit the upward movement of the member 86a' incident to the pull on the cables 65, 66. If slack occurs in the cables 65, 66', for reasons above set forth, the member 86a will gravivtate downwardly and thus take lup this slack and thereby prevent the cables from jump- -ing any of the sheaves or getting dislocated on the drums 73, 74. The operating mechanism 94 comprises a lever 94a pivoted at one end to some portion of the frame and formed at its opposite or free end with an opening through which the adjacent lgod 89 extends.

Intermediate its ends, thelever 94a is provid-I ed with a projection 94b 'which extends into a slot 94c formed in the member 86, so that when the latter gravitates downwardly, as

alrea'dy set forth, the end wall 'of the slot will engage'the projection 94b and through it swing the outer end of the lever downwardly. 94d indicates-a. spring coiled around the rod 89 and disposed between the lever 94a and a collar 89"adjustably`lixed to the rod 89. IAccordingly, t e` downward movement of the lever -94a wiall be. transmitted through the spring 94d aitd collar 89H0 move the rod 89 and thus operate the sowitch mechanism 8T to stop the motor 68.

In my construction relatively few parts are carried at or near the upper ends of the guidegfor the elevating member. By rigidlyv connecting-the channel bars of the frame sections and lower ends of the nguides together, I eliminate all tie-rods and other connecting or bracing members between the guides fand the frame, so that a relatively ldw center of. gravity is obtained.

From the foregoing descri tion it will be seen that my truck is relative y simple light and economical in construction, and that in accomplishing these results, the strength, ca-

pacity, and durability and easy operation of the truck have been maintained.

To those skilled in the art to which my invention relates, many changes in construction and widely diifering embodiments and applications of my invention will suggest, themselves without departing from the s iritandK scope thereof. My disclosures an .the description herein arel purely illustrative and are not intended to be in any sense .limiting.

What I claim i's:

1. In apparatus of the class described, the combination 'of a frame comprising a relatively low section, an elevated section overlapping at its inner end the inner end of said low section and gussets connected along their upper and lower edges to the overlapping portions of said sections, supporting and traction Y combination of a frame comprising a pair of` bars forming a relatively low section and a parof bars in a plane above said low section and overlapping the inner end thereof and forming an elevated section, corresponding bars ot' said pairs being disposed 1n the same vertical plane, a. gusset connected along itsl upper and lower edges to adjacent bars of said sections, supporting and traction wheels for said frame sections, respectively, a pair ot' guides secured to said gussets and extending upwardly from said low'section, an elevating member engaging said guides, a power unit on said elevated section, having a winding drum, and means including a flex ible member and sheaves` for raising and lowering said elevating member.

apparatus ot' the class described, the

combination of a framecoinprising a relaping portions ot said sections. supporting.

and traction wheels for said frame sections,

lrespectively, a pair of guides secured to the outer faces of* said gussets and vextending 4 upwardly from said low sectionalong the" outer 'edges of said gussets, an elevating member engaging sald guides, a power unit supporting wheels therefor,

' posed on the outer sides of on said elevated section,.baving a winding drum, and means including a liexible member a d sheaves for raising and lowering said elevating member.

'4. In apparatus of the 'class described, the. combination of a frame, traction' andr a pair of guides disposed vvertically on said frame, an clevatmgl member having axload supporting section and inwardly extending arms dissaid guides and rollers arranged on t-he inner'sides ofsaid armsand engaging the .outer sides of said guides, and-means for raising and lowering said elevating member, said means including,r a power' driven member, rotatable elements carriedby said guides and elevating member and a flexible element running over said rotatable elements and operated by said l 2.0 driven member.i

5. In apparatus of the class described, the combination of a .frame, traction and supporting. wheels therefor, a pair of guides disposed vertically on said frame, an elevating member having a load supporting section and a vertical section, said vertical section comprising inwardly extending arms and upright members disposed on the outer :m I 1 and engaging thev outer bers to carried by said guides and, said v member, a )power sides of said guides, upper and lower pairs of rollers carried by saldnpright members sides-of said guides plate connectingsaid upright memether, a power unit, and means opy said power'um't for raising and and a erated .lowering said elevating member, said means comprising a iiexible member and sheaves plate. 6. In apparatus of the class described, the combination -of a frame, traction and supporting wheels therefor, .a pair of guides disposed vertically on sain frame, an elevating member having a load supporting section and a vertical section, said vertical section comprlslng inwardly extendmg arms f and upright members disposed on the outer sides of said guides, upper and lower pairs. of rollers carried by said upri ht members and engaging the outer sides og said guides, a plate connecting said upright members together, 'a connector between the free end of each arm and the upper end of .the adjacent unit, andmeans operated by said power unit for raising and lowering pairs of sheaves supported of said guides, and iexible members ar- .clined angles,

.member having arms disposed at opposite sides of said guides,.rollers on said arms en.- gaging the outer sides of said guides, a pair o f sheaves carried by said elevating.- meinber, a power unit on said frame and provided with a pair of drums, pairs of 'sheaves supported at the upper ends of said guides, and flexible. members arranged to wind 'on land oflsaid'drums and running around said pairs of sheaves to raise and lower said elevating member, ported at the upper ends of said guides being disp'osedat inclined angles thereto, whereby theA flexible members clear. the power unit while winding ony and 'oli' said drums and running around said inclined sheaves;

8. In apparatus of the combination of a frame, traction and sup# porting wheels for" said frame, a pair of vertical guides on said frame, an elevating member comprisin a vertical section aving ta transverse plateand arms extending inward-l sides of said ly extending of said. guides, a pair o said transverse plate, a frameand provided wit class described, the

guides, rollers on said inwardlsheaves carried by ower unit on Said a pair of drums, at the upper ends ranged to wind on and oif` said drums and running around said pairs of sheaves to raise and lower said ends of said guides being disposed at' ini whereby the ieinble-melnbersA clear the power unit while windin off said drums and clined sheaves.

9. An apparatus as claimed in claim4 in which all of said v rotatable elements are disposed betweenl the 'des In testimony w subscribed my name.

EDWARD H." anims.

a horizon-tal section and arms enga "ngthe outer sides.

elevating member, said pairs ofsheaves supported at the upper y at `opposite v i on andZ 'running aroun sald 1n-.

ereof, I have hereunto 70 said pairs of sheaves sup- I 

